12277155317 has 4 divisors (see below), whose sum is σ = 14031034656. Its totient is φ = 10523275980.

The previous prime is 12277155299. The next prime is 12277155323. The reversal of 12277155317 is 71355177221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12277155317 - 2¹⁰ = 12277154293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277155347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876939659 + ... + 876939672.

It is an arithmetic number, because the mean of its divisors is an integer number (3507758664).

Almost surely, 2^12277155317 is an apocalyptic number.

It is an amenable number.

12277155317 is a deficient number, since it is larger than the sum of its proper divisors (1753879339).

12277155317 is an equidigital number, since it uses as much as digits as its factorization.

12277155317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753879338.

The product of its digits is 102900, while the sum is 41.

The spelling of 12277155317 in words is "twelve billion, two hundred seventy-seven million, one hundred fifty-five thousand, three hundred seventeen".